Investigating the Durability of Iodine Waste Forms in Dilute Conditions

Asmussen, R. Matthew; Ryan, Joseph V.; Matyas, Josef; Crum, Jarrod V.; Reiser, Joelle T.; Avalos, Nancy; McElroy, Erin M.; Lawter, Amanda R.; Canfield, Nathan C.

doi:10.3390/ma12050686

Title: Investigating the Durability of Iodine Waste Forms in Dilute Conditions

Journal Article · 26 February 2019 · Materials

DOI: https://doi.org/10.3390/ma12050686 · OSTI ID:1523249

^[1]; Ryan, Joseph V. ^[1]; Matyas, Josef ^[1]; Crum, Jarrod V. ^[1]; Reiser, Joelle T. ^[1]; Avalos, Nancy ^[1]; McElroy, Erin M. ^[1]; Lawter, Amanda R. ^[1]; Canfield, Nathan C. ^[1]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

To prevent the release of radioiodine during the reprocessing of used nuclear fuel or in the management of other wastes, many technologies have been developed for iodine capture. The capture is only part of the challenge as a durable waste form is required to ensure safe disposal of the radioiodine. This work presents the first durability studies in dilute conditions of two AgI-containing waste forms: hot-isostatically pressed silver mordenite (AgZ) and spark plasma sintered silver-functionalized silica aerogel (SFA) iodine waste forms (IWF). Using the single-pass flow-through (SPFT) test method, the dissolution rates respective to Si, Al, Ag and I were measured for variants of the IWFs. By combining solution and solid analysis information on the corrosion mechanism neutral-to-alkaline conditions was elucidated. The AgZ samples were observed to have corrosion preferentially occur at secondary phases with higher Al and alkali content. These phases contained a lower proportion of I compared with the matrix. The SFA samples experienced a higher extent of corrosion at Si-rich particles, but an increased addition of Si to the waste led to an improvement in corrosion resistance. The dissolution rates for the IWF types are of similar magnitude to other Si-based waste form materials measured using SPFT.

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Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-76RL01830

OSTI ID:: 1523249

Report Number(s):: PNNL-SA--140280

Journal Information:: Materials, Journal Name: Materials Journal Issue: 5 Vol. 12; ISSN 1996-1944; ISSN MATEG9

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

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Ball-Milling-Induced Amorphization of Zeolitic Imidazolate Frameworks (ZIFs) for the Irreversible Trapping of Iodine Bennett, Thomas D.; Saines, Paul J.; Keen, David A. Chemistry - A European Journal, Vol. 19, Issue 22 https://doi.org/10.1002/chem.201300216	journal	April 2013
Capture and reversible storage of volatile iodine by porous carbon with high capacity Sun, Hanxue; La, Peiqing; Zhu, Zhaoqi Journal of Materials Science, Vol. 50, Issue 22 https://doi.org/10.1007/s10853-015-9289-1	journal	July 2015
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Silica-based waste form for immobilization of iodine from reprocessing plant off-gas streams Matyáš, Josef; Canfield, Nathan; Sulaiman, Sannoh Journal of Nuclear Materials, Vol. 476 https://doi.org/10.1016/j.jnucmat.2016.04.047	journal	August 2016
Silver-mordenite for radiologic gas capture from complex streams: Dual catalytic CH3I decomposition and I confinement Nenoff, Tina M.; Rodriguez, Mark A.; Soelberg, Nick R. Microporous and Mesoporous Materials, Vol. 200 https://doi.org/10.1016/j.micromeso.2014.04.041	journal	December 2014
Capture of Elemental and Organic Iodine from Dilute Gas Streams by Silver-exchanged Mordenite Bruffey, S. H.; Jubin, R. T.; Jordan, J. A. Procedia Chemistry, Vol. 21 https://doi.org/10.1016/j.proche.2016.10.041	journal	January 2016
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A Luminescent Zinc(II) Metal–Organic Framework (MOF) with Conjugated π-Electron Ligand for High Iodine Capture and Nitro-Explosive Detection Yao, Ru-Xin; Cui, Xin; Jia, Xiao-Xia Inorganic Chemistry, Vol. 55, Issue 18 https://doi.org/10.1021/acs.inorgchem.6b01312	journal	August 2016
Silver-Loaded Aluminosilicate Aerogels As Iodine Sorbents Riley, Brian J.; Kroll, Jared O.; Peterson, Jacob A. ACS Applied Materials & Interfaces, Vol. 9, Issue 38 https://doi.org/10.1021/acsami.7b10290	journal	September 2017
Functional Monolithic Polymeric Organic Framework Aerogel as Reducing and Hosting Media for Ag nanoparticles and Application in Capturing of Iodine Vapors Katsoulidis, Alexandros P.; He, Jiaqing; Kanatzidis, Mercouri G. Chemistry of Materials, Vol. 24, Issue 10 https://doi.org/10.1021/cm300696g	journal	May 2012
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Radioactive Iodine Capture in Silver-Containing Mordenites through Nanoscale Silver Iodide Formation Chapman, Karena W.; Chupas, Peter J.; Nenoff, Tina M. Journal of the American Chemical Society, Vol. 132, Issue 26 https://doi.org/10.1021/ja103110y	journal	July 2010
Impact of the Si/Al ratio on the selective capture of iodine compounds in silver-mordenite: a periodic DFT study Chibani, Siwar; Chebbi, Mouheb; Lebègue, Sébastien Physical Chemistry Chemical Physics, Vol. 18, Issue 36 https://doi.org/10.1039/C6CP05015H	journal	January 2016
Silver-functionalized silica aerogel: towards an understanding of aging on iodine sorption performance Matyáš, Josef; Ilton, Eugene S.; Kovařík, Libor RSC Advances, Vol. 8, Issue 56 https://doi.org/10.1039/C8RA05137B	journal	January 2018
Chalcogen-based aerogels as a multifunctional platform for remediation of radioactive iodine Riley, Brian J.; Chun, Jaehun; Ryan, Joseph V. RSC Advances, Vol. 1, Issue 9 https://doi.org/10.1039/c1ra00351h	journal	January 2011
Development and Durability Testing of a Low‐Temperature Sintering Bi–Si–Zn Oxide Glass Composite Material (GCM) ¹²⁹ I Waste Form Mowry, Curtis D.; Brady, Patrick V.; Garino, Terry J. Journal of the American Ceramic Society, Vol. 98, Issue 10 https://doi.org/10.1111/jace.13751	journal	July 2015
Potential-pH Diagram of Silver Construction of the Diagram—Its Applications to the Study of the Properties of the Metal, its Compounds, and its Corrosion Delahay, Paul; Pourbaix, Marcel; Rysselberghe, Pierre Van Journal of The Electrochemical Society, Vol. 98, Issue 2 https://doi.org/10.1149/1.2778107	journal	January 1951
Radioactive Iodine and Krypton Control for Nuclear Fuel Reprocessing Facilities Soelberg, Nick R.; Garn, Troy G.; Greenhalgh, Mitchell R. Science and Technology of Nuclear Installations, Vol. 2013 https://doi.org/10.1155/2013/702496	journal	January 2013
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Fundamental parameters line profile fitting in laboratory diffractometers Cheary, R. W.; Coelho, A. A.; Cline, J. P. Journal of Research of the National Institute of Standards and Technology, Vol. 109, Issue 1 https://doi.org/10.6028/jres.109.002	journal	January 2004

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Ceramic Mineral Waste-Forms for Nuclear Waste Immobilization Orlova, Albina I.; Ojovan, Michael I. Materials, Vol. 12, Issue 16 https://doi.org/10.3390/ma12162638	journal	August 2019

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
corrosion
iodine
iodine capture
iodine immobilization
microscopy
silver iodide
waste form

Title: Investigating the Durability of Iodine Waste Forms in Dilute Conditions

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References (50)

Cited By (1)

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